12results about How to "Reduce surface oxidation" patented technology

According to the N-type TOPCon battery front grid line silver-aluminum paste and the battery, the surface of the aluminum powder in the silver-aluminum paste is coated with the organic modifier, so that the surface oil absorption rate of the aluminum powder is improved, the interaction among the aluminum powder is reduced, the aluminum powder and an organic carrier in the paste have better compatibility, and the service life of the aluminum powder is prolonged. The dispersing agent can be quickly and uniformly dispersed into organic or slurry, so that the agglomeration and the fineness of the slurry are reduced, and smooth printing on a thin-line-width screen printing plate is ensured; meanwhile, the surface of the aluminum powder is coated with organic matter, surface oxidation of the aluminum powder is reduced, flowing of molten aluminum at a low temperature in the sintering process is facilitated, contact and efficiency are improved, the sintered silicon contact surface and silver-aluminum spikes are tiny and large in number, and therefore the VOC and contact performance of the battery are improved, and the service life of the battery is prolonged. Therefore, the problems of grid breakage and silver-aluminum spikes easily caused by aluminum powder agglomeration in the printing process of the existing N-type TOPCon battery front grid line silver-aluminum paste are solved.

The utility model discloses a kind of casting magnesium alloy surface treatment equipment, belong to metal surface treatment technical field, its technical scheme main points include rack, the right side of the rack is provided with controller, the inside of the rack is provided with conveying structure, the front side and the back of the top of the rack are provided with preheating structure and drying mechanism respectively, the application is by setting conveying structure and drying mechanism, after conveying structure can realize the continuous conveying of batch in order while carrying workpiece, satisfy batch production demand, the even flow wind scooper in drying frame makes the hot air generated by electric heating disc cylinder evenly blow to workpiece, recovery bucket collects unsaturated hot air, after monitoring filtration by hygrometry filter structure, by suction fan is extracted again and is transported to electric heating disc cylinder to carry out recycling, improve hot air utilization, reduce energy consumption, second temperature sensor real-time monitoring temperature ensures drying stability, solve the existing equipment hot air utilization low, energy consumption is big, the problem of low efficiency.

The utility model provides a plate heating device, which comprises a heating control unit assembly connected with a heating pole assembly through a lead; the heating pole assembly is used for clamping the to-be-heated steel plate, so that the to-be-heated steel plate is continuously heated through current; and the temperature measuring device is connected with the heating control unit integration through a wire and is used for collecting temperature information of the steel plate to be heated and sending the temperature information to the heating control unit integration. According to the utility model, the steel plate to be heated is clamped by the heating pole assembly, so that the steel plate to be heated is continuously heated through current, and the surface oxidation phenomenon of the heated steel can be reduced.

The utility model relates to an anti -oxidation car stamping part storage frame, including bottom plate, setting at the limiting board of bottom plate four corners, support the support plate of stamping part, limit the position limiting piece of support plate and guide the guide rod of support plate, the four corners of bottom plate all is provided with the guide rod with limiting board, limiting piece sets up on limiting board and limiting piece has along limiting board upper and lower array setting has a plurality, the guide rod is worn in support plate. The connecting structure fixed between the partition and the placing frame body is solved, cannot adjust the placing space height according to the height of different automobile stamping parts, leads to the applicability of placing frame to be poorer, and the use limitation is high, and placing frame can only place a part of the stamping part that conforms to the height, reduces the practicality of placing frame.

The utility model relates to the bus duct technical field, concretely relates to a kind of intensive bus duct, including bus duct main body, vertical plate is vertically arranged between side plate and provides additional support to reduce the deformation caused by vibration, the slot accurately contains copper bar and limits its moving range to ensure that electrical clearance is constant, copper bar as the surface flatness of electric core component carrying large current transmission task needs to be kept to reduce impedance, insulation sleeve tightly wraps copper bar surface and blocks ground leakage current and endures high temperature aging, significantly improve safety performance by multiple protection design, copper bar outer layer is wrapped insulation sleeve to effectively isolate current leakage risk, fireproof filling is closely surrounded slot to form high temperature blocking layer, protective plate and fixed block cooperate to protect internal structure from external force impact, the superposition of anticorrosive coating, fireproof coating and insulating coating is sprayed to realize the triple guarantee of anticorrosion, flame retardant and insulation.

The invention discloses wafer integrated processing equipment and an integrated processing method. The integrated processing equipment of the wafer comprises a pretreatment cavity used for carrying out plasma pretreatment on a substrate; the cobalt deposition cavity is used for performing cobalt deposition treatment on the substrate; the aluminum nitride cavity is used for carrying out aluminum nitride deposition treatment on the wafer; the oxygen-doped silicon carbide cavity is used for performing oxygen-doped silicon carbide deposition treatment on the wafer; and the transmission device is connected with the pretreatment cavity, the cobalt deposition cavity, the aluminum nitride cavity and the oxygen-doped silicon carbide cavity, and is used for driving the wafer to flow among the pretreatment cavity, the cobalt deposition cavity, the aluminum nitride cavity and the oxygen-doped silicon carbide cavity in a vacuum environment. According to the invention, the wafer processing process is integrated in the same platform equipment, the wafer can continue to enter the aluminum nitride cavity for deposition in a vacuum state after cobalt deposition treatment, and then enters the oxygen-doped silicon carbide cavity for deposition, so that cobalt can be prevented from being exposed in an air environment, and the risks of surface oxidation and particle pollution are reduced.

The invention belongs to the field of alloy materials, and particularly relates to a preparation method of a high-strength ultrathin light Al / Mg-Li / Al composite foil, which comprises the following steps: cutting a magnesium-lithium alloy and a pure aluminum plate into blocks with the same length and width and different thicknesses, cleaning, stacking according to an Al / Mg-Li / Al mode, rolling into a composite plate through large deformation at a certain temperature, and carrying out heat treatment to obtain the high-strength ultrathin light Al / Mg-Li / Al composite foil. And then large-deformation and small-deformation repeated cold rolling and pressure finish machining cold rolling are adopted for preparation. The method is low in manufacturing cost, simple and convenient, the strength is greatly improved, and large-scale batch production is easy to achieve.

The invention discloses a control method, device and equipment for furnace pressure of a normalizing furnace and a medium, and belongs to the technical field of metallurgy. The method comprises the steps that the furnace pressure of a normalizing furnace is obtained; and the furnace pressure is controlled to be gradually increased in the running direction of the strip steel in the normalizing furnace. The method can effectively prevent a large amount of combustion waste gas from flowing back to the rear half section of the normalizing furnace, reduce the pollution of the hearth atmosphere of the rear half section of the normalizing furnace, reduce the surface oxidation degree of the product and reduce the nodulation degree of the furnace roller, thereby reducing the quality defects of the product.

The utility model provides a profiled bar heating device, comprising a heating control unit connected with a first deconcentrator and a second deconcentrator through leads; the first deconcentrator is connected with the first heating electrode assembly through a wire; the second deconcentrator is connected with the second heating electrode assembly through a wire; special-shaped steel is placed between the first heating pole assembly and the second heating pole assembly, so that the first heating pole assembly and the second heating pole assembly are connected, and electric energy is converted into heat energy to heat the special-shaped steel. According to the special-shaped steel heating device, the foldable fixing frame is arranged, and an electric heating mode is adopted, so that surface oxidation after the special-shaped steel is heated can be reduced, and heating of all types of special-shaped steel can be met.

This utility model relates to the field of roll-to-roll calendering technology and discloses a roll-to-roll calendering device for copper alloy heating film. The device includes a segmented heating box, a calendering device on the right side of the segmented heating box, a control panel fixedly installed on the left side of the calendering device, a partitioning mechanism inside the segmented heating box, an adjustment mechanism inside the segmented heating box, and a cover plate on the top of the segmented heating box. The segmented heating box and the cover plate are fixedly installed by bolts. The device releases cold rolling stress in stages through gradient annealing (200℃→120℃→50℃), significantly reducing the risk of bending cracking, eliminating the need for offline annealing, improving production efficiency, and eliminating the need to re-roll the cold-rolled copper foil roll, saving time and effort, and avoiding the probability of damage to the copper foil from multiple windings, thereby increasing the yield.

The invention relates to the technical field of machining and manufacturing of mechanical parts, and specifically proposes a spin forming device for a CNC machine tool; the device comprises a fixed frame fixed in the machine tool, an axial frame is slidably mounted on the fixed frame along the main axis direction of the CNC machine tool, and a radial feeding mechanism and an auxiliary feeding mechanism are mounted on the axial frame; the invention can provide automatic pushing and unloading and improve machining positioning accuracy during the spinning process, and at the same time, comprehensively improve the quality and accuracy of the spin forming of the workpiece by balancing the spinning force, synchronous surface cleaning and synchronous spinning cooling, greatly reduce the possibility of various molding quality defects such as shape deviation, uneven wall thickness, rough and uneven surface, and surface oxidation, and improve the machining quality.

The invention discloses a method for preparing a samarium-iron alloy with reduced samarium volatilization, and belongs to the technical field of alloy preparation. Excess samarium is added to the raw materials, and the high-melting-point raw materials and the low-melting-point raw materials are melted twice during the smelting process. The high-melting-point raw materials and a small amount of samarium are melted first, and a small amount of samarium and high-melting-point raw materials such as Fe are used to form an alloy with a lower melting point. The excess samarium and the low-melting-point raw materials are then added for a second time, and the alloy melt can be formed after rapid melting. When the molten alloy is cast onto a cooling roller, the rotation speed of the cooling roller is controlled to form Sm2Fe 17 Phase, and finally the cooled alloy sheet is homogenized to eliminate the impurity phase. The samarium-iron alloy prepared by the preparation method of the present invention can effectively reduce the volatilization of samarium and control the cost, and the content of the impurity α-Fe phase of the formed samarium-iron alloy is low.